{"product_id":"nissan-4-pin-oxygen-sensor-connector-oem-7287-3838-40-sumitomo","title":"Nissan 4-Pin Oxygen Sensor Connector – OEM 7287-3838-40 \/ 7286-3838-40 | Sumitomo","description":"\u003ch2\u003eNissan 4-Pin Oxygen Sensor Connector – OEM 7287-3838-40 \/ 7286-3838-40 | Sumitomo\u003c\/h2\u003e\n\u003cp\u003eDirect OEM-specification replacement for the Nissan 4-pin heated oxygen sensor (HO2S) connector. Cross-references Sumitomo part numbers \u003cstrong\u003e7287-3838-40\u003c\/strong\u003e (female\/socket side) and \u003cstrong\u003e7286-3838-40\u003c\/strong\u003e (male\/plug side). Used on upstream (pre-cat) and downstream (post-cat) oxygen sensors across Nissan and Infiniti platforms. Available bare or with 15cm pre-wired leads.\u003c\/p\u003e\n\n\u003ch3\u003e4-Pin HO2S Circuit Function\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eFailure Symptom if Corroded\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eHeater element power (+12V switched)\u003c\/td\u003e\n\u003ctd\u003eP0135 \/ P0141 — O2 sensor heater circuit malfunction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eHeater element ground\u003c\/td\u003e\n\u003ctd\u003eSlow O2 sensor warm-up, rich running when cold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eO2 signal output to ECU (0–1V)\u003c\/td\u003e\n\u003ctd\u003eP0130–P0167 — O2 sensor circuit fault, poor fuel economy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eSignal ground \/ reference\u003c\/td\u003e\n\u003ctd\u003eErratic O2 reading, ECU unable to trim fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Count\u003c\/td\u003e\n\u003ctd\u003e4-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e7287-3838-40 \/ 7286-3838-40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Series\u003c\/td\u003e\n\u003ctd\u003eSumitomo automotive series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eHigh-temp nylon (PA66)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Option\u003c\/td\u003e\n\u003ctd\u003eBare connector \/ 15cm pre-wired leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eHeated oxygen sensor (HO2S) harness — upstream and downstream\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eNissan, Infiniti\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFault Codes This Connector Fixes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eCode\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0130\u003c\/td\u003e\n\u003ctd\u003eO2 sensor circuit — Bank 1, Sensor 1 (upstream)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0136\u003c\/td\u003e\n\u003ctd\u003eO2 sensor circuit — Bank 1, Sensor 2 (downstream)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0135\u003c\/td\u003e\n\u003ctd\u003eO2 sensor heater circuit — Bank 1, Sensor 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0141\u003c\/td\u003e\n\u003ctd\u003eO2 sensor heater circuit — Bank 1, Sensor 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP0150\u003c\/td\u003e\n\u003ctd\u003eO2 sensor circuit — Bank 2, Sensor 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNissan Altima (L32\/L33) – Upstream and downstream O2 sensor harness\u003c\/li\u003e\n\u003cli\u003eNissan X-Trail (T31\/T32) – Oxygen sensor connector\u003c\/li\u003e\n\u003cli\u003eNissan Teana (J31\/J32) – HO2S harness\u003c\/li\u003e\n\u003cli\u003eNissan Patrol (Y61\/Y62) – O2 sensor connector\u003c\/li\u003e\n\u003cli\u003eInfiniti G37 \/ Q50 – Shared Nissan O2 sensor architecture\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: My Nissan has P0135 but the O2 sensor heater tests OK — what’s wrong?\u003c\/strong\u003e\u003cbr\u003eA: P0135 is a heater circuit fault — it means the ECU cannot confirm the heater is operating, which can be caused by a corroded Pin 1 (heater power) or Pin 2 (heater ground) in the 4-pin connector. Inspect the connector before replacing the O2 sensor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are terminals included?\u003c\/strong\u003e\u003cbr\u003eA: Yes, terminals are included with all variants.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"Female","offer_id":47831712989429,"sku":"14:200004889#Female","price":17.76,"currency_code":"USD","in_stock":true},{"title":"Female 15CM","offer_id":47831712923893,"sku":"14:200004891#Female 15CM","price":23.76,"currency_code":"USD","in_stock":true},{"title":"Male","offer_id":47831713022197,"sku":"14:202642826#Male","price":17.76,"currency_code":"USD","in_stock":true},{"title":"Male 15CM","offer_id":47831712956661,"sku":"14:200004890#Male 15CM","price":23.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S5fc83f0efb5c4a228fc943a7c471ab46O.webp?v=1773633932","url":"https:\/\/www.csldmcml.com\/products\/nissan-4-pin-oxygen-sensor-connector-oem-7287-3838-40-sumitomo","provider":"Cable Parts Online","version":"1.0","type":"link"}